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P21/5W BAY15D Dual Intensity LED Bulbs (Pair)

High-visibility dual-brightness replacement for 1157 brake, tail, and parking lights

4.9 14 reviews 5 sold in the last 24 hours
Rs. 1,049.00 Rs. 1,500.00

Inclusive of all taxes. Extra 2% off on UPI (Auto applied)

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Product Highlights

  • Dual Intensity Lighting: Functions as a dim tail/parking light and brightens instantly upon braking.
  • 1157 BAY15D Dual Pin Fitment: Offset dual contact pins fit standard P21/5W automotive sockets.
  • Instant Brake Response: Reaches full brightness 0.2 seconds faster than traditional filament bulbs.
  • Vivid Red & Amber Colors: Provides distinct illumination for rear brake lamps and signal assemblies.

Got questions?

FREQUENTLY ASKED QUESTIONS

Quick answers to common questions about fitment, installation, and product use.

What does dual intensity mean for this bulb?
It means the bulb operates at a lower brightness when your park/headlights are on, and switches to high brightness when you step on the brake pedal.
Will these fit 1157 BAY15D sockets?
Yes, P21/5W and 1157 BAY15D refer to the same dual-contact offset bayonet pin standard.
Are these bulbs polarity sensitive?
No, they feature integrated bridge rectifiers for multi-directional current flow.

Product Details

Description

P21/5W BAY15D Dual Intensity LED Brake & Tail Light Bulbs (Pair)

Upgrade stock halogen brake lamps with P21/5W BAY15D Dual Intensity LED Bulbs. Featuring 1157 BAY15D dual contact pin indexing, these bulbs operate as dim parking lights and instantly brighten when the brake pedal is depressed.

Instant Brake Activation & Dual Contact Pin Alignment

Equipped with high-density SMD LEDs, these bulbs reach maximum brightness in 0.01 seconds, giving trailing drivers extra reaction time. Available in vivid Red and Amber output options for clear signal distinction.

Key Features

  • Dual Intensity Circuit: Low brightness for tail/parking light function and high brightness for brake light activation.
  • 1157 BAY15D Socket Standard: Off-set bayonet pins fit factory P21/5W dual contact light sockets.
  • Instant 0.01s Illumination: LED activation eliminates halogen filament warm-up delay for safer braking.
  • Built-In Canbus Driver: Regulates voltage input across 12V-15V DC vehicle electrical systems.
In The Box
  • 2 x P21/5W BAY15D LED Bulbs (1 Pair)
Shipping & Returns
  • Exchange Only
Warranty
  • 6 Months

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  • 5 stars: 13 (93%)
  • 4 stars: 1 (7%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
A
Abhijit

Brighter than stock bulbs, hope those lasts well and heat dissipation is managed well and won’t cause any issues.. Pick 1157 if yours is dual filament I.e. tail+brake light in same bulb. Refer before after with and without brake applied pics. Will now consider to upgrade the tail bulbs (inner ones on boot)

Abhijit review photo Abhijit review photo Abhijit review photo
V
Vaibhav G.

Really Good Brightness. No Hyper-Flash. Reasonable Pricing. Good Delivery Experience.

Vaibhav G. review photo
V
Vaskar M.

Good

Vaskar M. review photo
V
VIVEK

Nice blinkers

V
Vaskar M.

Great Service

V
Vaibhav G.

Good product.

N
Nitesh

Brake & parking light is perfect plug and play fit for my i10 2009 model. It works like a charm!

S
Syed S.

Very Bright

D
Daayin M.H.

Very bright bulb and works perfect

A
ATEEQ M.K.

Excellent

A
Anonymous

Excellent brightness, highly recommended

A
Anonymous

Nothing

r
rohit W.W.

Bright and powerful led, using in my Tata Nano's brake lights.

N
Navmeet S.

These are very bright LEDs. I am using these
44 LED bulbs as my car indicator bulbs. 2 pairs each for front and back. Have also installed another pair in the rear brake lights as stop lamps with different bulb base. Highly satisfied with the product at this price.